使用afconvert命令行工具将.mp3文件转换为m4r

Question

我有一个简短的bash脚本，是为了将一个文件夹的.mp3文件转换为.m4r铃声。我很难弄清楚为什么它会抛出以下错误：

“错误: ExtAudioFileCreateWithURL失败('fmt?')”

#!/bin/bash

cd "/path/to/directory/containing/mp3s"

for i in *.mp3; do
    baseFilename=$( basename ${i} .mp3 )
    afconvert -f m4af ${i} -o "/path/to/new/location/${baseFilename}.m4r"
done

exit 0

Answer 1

问题是我没有指定输出数据格式。找到一个有帮助的页面，将我带到答案：

http://support.moonpoint.com/os/os-x/audio/afconvert.php

    #!/bin/bash

cd "/path/to/directory/containing/mp3s"

for i in *.mp3; do
    baseFilename=$( basename "${i}" .mp3 )
    afconvert -f m4af "${i}" -d aac "/path/to/new/location/${baseFilename}.m4r"
done

exit 0